linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: NeilBrown <neilb@suse.com>
To: Thomas Graf <tgraf@suug.ch>, Herbert Xu <herbert@gondor.apana.org.au>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/4] Convert rhashtable to use bitlocks
Date: Mon, 25 Mar 2019 16:05:39 +1100	[thread overview]
Message-ID: <155349021177.1111.15681654355431465791.stgit@noble.brown> (raw)

This series converts rhashtable to use a per-bucket bitlock
rather than a separate array of spinlocks.
This:
  reduces memory usage
  results in slightly fewer memory accesses
  slight improves parallelism
  make a configuration option unnecessary

Thanks,
NeilBrown

---

NeilBrown (4):
      rhashtable: use cmpxchg() in nested_table_alloc()
      rhashtable: allow rht_bucket_var to return NULL.
      rhashtable: use bit_spin_locks to protect hash bucket.
      rhashtable: add lockdep tracking to bucket bit-spin-locks.


 include/linux/rhashtable-types.h |    2 
 include/linux/rhashtable.h       |  204 ++++++++++++++++++++++++++------------
 ipc/util.c                       |    1 
 lib/rhashtable.c                 |  143 +++++++++++++++------------
 net/bridge/br_fdb.c              |    1 
 net/bridge/br_multicast.c        |    1 
 net/bridge/br_vlan.c             |    1 
 net/bridge/br_vlan_tunnel.c      |    1 
 net/ipv4/ipmr.c                  |    1 
 net/ipv6/ip6mr.c                 |    1 
 net/netfilter/nf_tables_api.c    |    1 
 11 files changed, 219 insertions(+), 138 deletions(-)

--
Signature


             reply	other threads:[~2019-03-25  5:06 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-25  5:05 NeilBrown [this message]
2019-03-25  5:05 ` [PATCH 1/4] rhashtable: use cmpxchg() in nested_table_alloc() NeilBrown
2019-03-25  5:05 ` [PATCH 4/4] rhashtable: add lockdep tracking to bucket bit-spin-locks NeilBrown
2019-03-25  5:05 ` [PATCH 3/4] rhashtable: use bit_spin_locks to protect hash bucket NeilBrown
2019-03-26  5:03   ` Herbert Xu
2019-03-26 15:36     ` Paul E. McKenney
2019-03-27  3:45       ` Herbert Xu
2019-03-26 22:35     ` NeilBrown
2019-03-27  3:45       ` Herbert Xu
2019-03-27 15:04       ` Paul E. McKenney
2019-03-26  5:27   ` Herbert Xu
2019-03-26 22:40     ` NeilBrown
2019-03-25  5:05 ` [PATCH 2/4] rhashtable: allow rht_bucket_var to return NULL NeilBrown

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=155349021177.1111.15681654355431465791.stgit@noble.brown \
    --to=neilb@suse.com \
    --cc=herbert@gondor.apana.org.au \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=tgraf@suug.ch \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).